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Finding the Fourth Proportional to 319,981.33, 480,234.35 and 162,254.89

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Solution

The fourth proportional to 319,981.33, 480,234.35 and 162,254.89 is: 243,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,981.33 : 480,234.35 = 162,254.89 : x
  2. Step 2: Convert to fraction form
    319,981.33/480,234.35 = 162,254.89/x
  3. Step 3: Cross multiply
    319,981.33x = 480,234.35 × 162,254.89
  4. Step 4: Simplify right side
    319,981.33x = 77,920,371,633.47
  5. Step 5: Solve for x
    x = 77,920,371,633.47/319,981.33
  6. Step 6: Final answer
    x = 243,515.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.